21241630

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{823}}^1$

素因数の和:948

約数の個数: 32

約数和(自身を含む): 40046400

約数和(自身を除く): 18804770

約数列:

[1, 2, 5, 10, 29, 58, 89, 145, 178, 290, 445, 823, 890, 1646, 2581, 4115, 5162, 8230, 12905, 23867, 25810, 47734, 73247, 119335, 146494, 238670, 366235, 732470, 2124163, 4248326, 10620815, 21241630]

約数ペア:

[(1, 21241630), (2, 10620815), (5, 4248326), (10, 2124163), (29, 732470), (58, 366235), (89, 238670), (145, 146494), (178, 119335), (290, 73247), (445, 47734), (823, 25810), (890, 23867), (1646, 12905), (2581, 8230), (4115, 5162)]